JP2503238Y2 - Wire source - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire saw used for cutting stones, concrete and the like.

[0002]

2. Description of the Related Art As a wire saw of this type, as shown in FIG. 3, a large number of sleeves 3 are attached at predetermined intervals in the length direction of a wire rope 1 via a plastic layer 2.
It is known that a superabrasive layer 4 such as diamond or CBN is fixed to the outer peripheral surface of the sleeve 3.

The plastic layer 2 has a role of fixing the sleeve and the wire rope 1 to prevent rotation of the sleeve and pitch deviation, and protects the wire rope 1 from chips and the like. It is formed by being fixed to the sleeve by sintering, electrodeposition or the like.

[0004]

The sleeve is formed of a copper-plated iron pipe or the like, and an abrasive grain layer formed by bonding superabrasive grains with a copper-zinc alloy is fixed to the outer periphery by sintering or the like. For fixing the sleeve to the wire rope, the adhesive including the plastic layer 2, the forming and fixing of the abrasive grain layer and the sleeve by the caulking of the sleeve, the fixing of the sleeve and the plastic layer, and the fixing of the wire rope are all time consuming. Therefore, it is troublesome and costly.

[0005]

[Means for Solving the Problems] Superabrasive grains are sintered with a Co-Ni alloy to manufacture beads, which are inserted into a wire rope through a metal sleeve, and the beads are caulked to form a wire rope together with the sleeve. Fixed to.

When the sleeve is omitted, a base without superabrasive grains is formed on the inner layer of the beads.

[0007]

EXAMPLE In FIG. 1, 1A is diamond, CBN
Beads having an outer diameter of 6 mm and a wall thickness of 1 mm, which are formed by sintering superabrasive grains such as 5 to 50% by weight of Ni in a Co-Ni alloy.
A is a sleeve made of iron or copper with an outer diameter of 4 mm and a wall thickness of 0.5 mm, and 3A is an outer diameter of about 3 m obtained by twisting thin stainless steel wires.
m wire rope.

The beads 1A are caulked on the outer circumference of the wire rope 3A via the sleeve 2A at intervals of about 20 to 25 mm. Co-Ni alloy is
Since the sinterability is good and the sintered beads have a good retention of superabrasive grains and a good spreadability, they can be integrally fixed well by caulking.

Therefore, the beadsaw, the sleeve, and the rope are separately manufactured, and the wire saw can be formed at once by inserting the sleeve and the beads on the rope and crimping the beads. Without cost
A wire saw can be produced extremely efficiently.

If there is no sleeve, the abrasive grains of the beads directly contact the wire rope and cause abrasion, so a sleeve is required.
As it is fixed to the wire rope integrally,
It is not necessary to fix both by sintering beforehand.

Further, instead of the sleeve, when the beads are manufactured, if the base 4A (FIG. 2) containing only Co--Ni alloy containing no superabrasive grains is formed on the inner layer of the beads, it is not necessary to use the sleeve. .

In the embodiment, the plastic layer 2
However, it is of course possible to use a plastic layer.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view showing another embodiment.

FIG. 3 is a vertical cross-sectional view of a conventional wire saw.

[Explanation of symbols]

1A beads 2A sleeve 3A wire rope 4A base 1 wire rope 2 plastic layer 3 sleeve 4 superabrasive layer

Claims (1)

(57) [Scope of utility model registration request] 1. A cemented carbide grain containing 5% to 50% by weight of Ni--Co--
A plurality of beads that are sintered and held by a Ni-based alloy are fixed on the outer circumference of the wire rope at intervals, and the fixing is based on a base containing no superabrasive grains in the bead inner layer, or a metal. A wire saw, wherein beads are crimped and formed on a wire rope through a sleeve made of steel.